.

src/controller/commands/CommandRegister.java

@@ -8,11 +8,8 @@ package controller.commands;
 
 import controller.CommandInterface;
 import gui.Hauptfenster;
-import java.text.ParseException;
 import java.util.logging.Level;
 import java.util.logging.Logger;
-import javax.sip.InvalidArgumentException;
-import javax.sip.SipException;
 import logger.OhmLogger;
 import model.SIPmodel;
 
@@ -41,7 +38,7 @@ public class CommandRegister implements CommandInterface
       model.sendRegister(view.getTxtServerIP().getText(), 5060);
       
     }
-    catch (ParseException|InvalidArgumentException|SipException ex)
+    catch (Exception ex)
     {
       view.getTxtArea().append("Registrierung fehlgeschlagen\n");
       lgregister.getLogger(CommandRegister.class.getName()).log(Level.SEVERE, null, ex);

src/model/SIP180Ringing.java

@@ -5,31 +5,12 @@
  */
 package model;
 
-import static java.lang.Thread.sleep;
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
-import java.util.logging.Level;
-import java.util.logging.Logger;
-import javax.sip.RequestEvent;
-import javax.sip.SipException;
-import javax.sip.header.AllowEventsHeader;
-import javax.sip.header.AllowHeader;
-import javax.sip.header.CSeqHeader;
-import javax.sip.header.ContactHeader;
-import javax.sip.header.FromHeader;
-import javax.sip.header.HeaderFactory;
-import javax.sip.header.ToHeader;
-import javax.sip.header.ViaHeader;
-import javax.sip.message.MessageFactory;
-import javax.sip.message.Response;
-import logger.OhmLogger;
-
 /**
  *
  * @author Jan
  */
-public class SIP180Ringing implements Runnable
+public class SIP180Ringing
-{
+{/*
   private RequestEvent evtubergabe;
   private ExecutorService threadring;
   private boolean run;
@@ -106,4 +87,5 @@ public class SIP180Ringing implements Runnable
       }
     }
   }
+*/
 }

src/model/SIP200Ok.java

@@ -5,15 +5,19 @@
  */
 package model;
 
+import java.util.logging.Level;
 import java.util.logging.Logger;
+import javax.sdp.SessionDescription;
 import javax.sip.RequestEvent;
 import javax.sip.header.AllowEventsHeader;
 import javax.sip.header.AllowHeader;
 import javax.sip.header.CSeqHeader;
 import javax.sip.header.CallIdHeader;
 import javax.sip.header.ContactHeader;
+import javax.sip.header.ContentTypeHeader;
 import javax.sip.header.FromHeader;
 import javax.sip.header.HeaderFactory;
+import javax.sip.header.SupportedHeader;
 import javax.sip.header.ToHeader;
 import javax.sip.header.ViaHeader;
 import javax.sip.message.MessageFactory;
@@ -28,21 +32,26 @@ public class SIP200Ok
 {
   private Response response;
   private static final Logger lg200Ok = OhmLogger.getLogger();
+  private RequestEvent requestEvent;
+  private HeaderFactory headerFactory;
+
   public SIP200Ok(MessageFactory messageFactory, RequestEvent requestEvent,
                   ContactHeader contactHeader, HeaderFactory headerFactory)
   {
+    this.requestEvent = requestEvent;
+    this.headerFactory = headerFactory;
     try
     {
-      Response response = messageFactory.createResponse(200, requestEvent.getRequest());
+      response = messageFactory.createResponse(Response.OK, this.requestEvent.getRequest());
-      response.addHeader((ViaHeader) requestEvent.getRequest().getHeader("Via"));
+      response.addHeader((ViaHeader) this.requestEvent.getRequest().getHeader("Via"));
-      response.addHeader((FromHeader) requestEvent.getRequest().getHeader("From"));
+      response.addHeader((FromHeader) this.requestEvent.getRequest().getHeader("From"));
-      response.addHeader((ToHeader) requestEvent.getRequest().getHeader("To"));
+      response.addHeader((ToHeader) this.requestEvent.getRequest().getHeader("To"));
-      response.addHeader((CallIdHeader) requestEvent.getRequest().getHeader("Call-ID"));
+      response.addHeader((CallIdHeader) this.requestEvent.getRequest().getHeader("Call-ID"));
-      response.addHeader((CSeqHeader) requestEvent.getRequest().getHeader("Cseq"));
+      response.addHeader((CSeqHeader) this.requestEvent.getRequest().getHeader("Cseq"));
       response.addHeader(contactHeader);
-      AllowHeader allow = headerFactory.createAllowHeader("NOTIFY,INVITE,ACK,CANCEL,BYE,REFER,INFO,OPTIONS,MESSAGE");
+      AllowHeader allow = this.headerFactory.createAllowHeader("NOTIFY,INVITE,ACK,CANCEL,BYE,REFER,INFO,OPTIONS,MESSAGE");
-      AllowEventsHeader allowevents = headerFactory.createAllowEventsHeader("talk,hold,refer,call-info");
+      AllowEventsHeader allowevents = this.headerFactory.createAllowEventsHeader("talk,hold,refer,call-info");
-      response.addHeader((CallIdHeader) requestEvent.getRequest().getHeader("Call-ID"));
+      response.addHeader((CallIdHeader) this.requestEvent.getRequest().getHeader("Call-ID"));
       response.addHeader(allow);
       response.addHeader(allowevents);
       lg200Ok.info("200Ok Header erfolgreich erstellt");
@@ -53,6 +62,26 @@ public class SIP200Ok
     }
   }
 
+  public void addSDP(SessionDescription sdp, String myTag)
+  {
+    try
+    {
+      response.removeHeader("To");
+      ToHeader temptoring = (ToHeader) requestEvent.getRequest().getHeader("To");
+      temptoring.setTag(myTag); //evtl. besseren Tag
+      response.addHeader(temptoring); //evtl noch Ergänzungen
+      SupportedHeader supp = this.headerFactory.createSupportedHeader("replace,path,timer");//nachschauen für was es gebraucht wird
+      response.addHeader(supp);
+      ContentTypeHeader content = headerFactory.createContentTypeHeader("application", "sdp");
+      response.addHeader(content);
+      response.setContent(sdp, content);
+    }
+    catch (Exception ex)
+    {
+      lg200Ok.getLogger(SIPmodel.class.getName()).log(Level.SEVERE, null, ex);
+    }
+  }
+
   /**
    * @return the response
    */

src/model/SIPInvite.java

@@ -0,0 +1,79 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package model;
+
+import java.util.ArrayList;
+import java.util.logging.Logger;
+import javax.sdp.SessionDescription;
+import javax.sip.address.Address;
+import javax.sip.address.AddressFactory;
+import javax.sip.address.URI;
+import javax.sip.header.AllowHeader;
+import javax.sip.header.CSeqHeader;
+import javax.sip.header.CallIdHeader;
+import javax.sip.header.ContactHeader;
+import javax.sip.header.ContentTypeHeader;
+import javax.sip.header.ExpiresHeader;
+import javax.sip.header.FromHeader;
+import javax.sip.header.HeaderFactory;
+import javax.sip.header.MaxForwardsHeader;
+import javax.sip.header.ToHeader;
+import javax.sip.header.ViaHeader;
+import javax.sip.message.MessageFactory;
+import javax.sip.message.Request;
+import logger.OhmLogger;
+
+/**
+ *
+ * @author Jan
+ */
+public class SIPInvite
+{
+  private Request inviterequest;
+  private static final Logger lgInvite = OhmLogger.getLogger();
+
+  public SIPInvite(String sipaddresse, String proxyaddresse, String myIPAddress,
+                   int myPort,
+                   String myTag, int branch, CallIdHeader callID, long cSequenz,
+                   AddressFactory addressFactory, SessionDescription sessionDescription,
+                   HeaderFactory headerFactory, MessageFactory messageFactory, ContactHeader contactHeader)
+  {
+    try
+    {
+      Address addressto = addressFactory.createAddress("sip:" + sipaddresse + "@" + proxyaddresse);
+      ToHeader to = headerFactory.createToHeader(addressto, null); // Integer.toString(myTag)  address + myTag
+      URI requestURI = addressto.getURI();
+      FromHeader from = headerFactory.createFromHeader(addressto, String.valueOf(myTag)); //this.contactAddress
+      ArrayList via = new ArrayList(); //Via needs a List as input
+      ViaHeader viaheader = headerFactory.createViaHeader(myIPAddress, myPort, "UDP", String.valueOf(branch));
+      via.add(viaheader);
+      CSeqHeader cSeq = headerFactory.createCSeqHeader(cSequenz, "INVITE");
+      MaxForwardsHeader maxForwards = headerFactory.createMaxForwardsHeader(70);
+      AllowHeader allow = headerFactory.createAllowHeader("NOTIFY,INVITE,ACK,CANCEL,BYE,REFER,INFO,OPTIONS,MESSAGE");
+      ExpiresHeader expire = headerFactory.createExpiresHeader(3600); //int value 
+      inviterequest = messageFactory.createRequest(requestURI, "INVITE", callID, cSeq, from, to, via, maxForwards);
+      inviterequest.addHeader(contactHeader);
+      inviterequest.addHeader(allow);
+      inviterequest.addHeader(expire);
+      ContentTypeHeader content = headerFactory.createContentTypeHeader("application", "sdp");
+      inviterequest.addHeader(content);
+      inviterequest.setContent(sessionDescription, content);
+      System.out.println(inviterequest);
+    }
+    catch (Exception e)
+    {
+    }
+
+  }
+
+  /**
+   * @return the inviterequest
+   */
+  public Request getInviterequest()
+  {
+    return inviterequest;
+  }
+}

src/model/SIPRegister.java

@@ -0,0 +1,74 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package model;
+
+import java.util.ArrayList;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import javax.sip.address.Address;
+import javax.sip.address.AddressFactory;
+import javax.sip.address.URI;
+import javax.sip.header.AllowHeader;
+import javax.sip.header.CSeqHeader;
+import javax.sip.header.CallIdHeader;
+import javax.sip.header.ContactHeader;
+import javax.sip.header.ExpiresHeader;
+import javax.sip.header.FromHeader;
+import javax.sip.header.HeaderFactory;
+import javax.sip.header.MaxForwardsHeader;
+import javax.sip.header.ToHeader;
+import javax.sip.header.ViaHeader;
+import javax.sip.message.MessageFactory;
+import javax.sip.message.Request;
+import logger.OhmLogger;
+
+/**
+ *
+ * @author Jan
+ */
+public class SIPRegister
+{
+  private static final Logger lgRegister = OhmLogger.getLogger();
+  private Request request;
+
+  public SIPRegister(String proxyAddress, String myTag, String myIPAddress, int myPort,
+                     int branch, AddressFactory addressFactory, HeaderFactory headerFactory,
+                     MessageFactory messageFactory, ContactHeader contactHeader, CallIdHeader callID)
+  {
+    try
+    {
+      Address addressto = addressFactory.createAddress("sip:" + proxyAddress); //evtl. mit Port: sip:192.168.100.11:5060
+      ToHeader to = headerFactory.createToHeader(addressto, null); // Integer.toString(myTag)  address + myTag
+      URI requestURI = addressto.getURI();
+      FromHeader from = headerFactory.createFromHeader(addressto, myTag); //this.contactAddress
+      ArrayList via = new ArrayList(); //Via needs a List as input
+      ViaHeader viaheader = headerFactory.createViaHeader(myIPAddress, myPort, "UDP", String.valueOf(branch));
+      via.add(viaheader);
+      CSeqHeader cSeq = headerFactory.createCSeqHeader(1L, "REGISTER");
+      MaxForwardsHeader maxForwards = headerFactory.createMaxForwardsHeader(70);
+      AllowHeader allow = headerFactory.createAllowHeader("NOTIFY,INVITE,ACK,CANCEL,BYE,REFER,INFO,OPTIONS,MESSAGE");
+      ExpiresHeader expire = headerFactory.createExpiresHeader(3600); //int value 
+      request = messageFactory.createRequest(requestURI, "REGISTER", callID, cSeq, from, to, via, maxForwards);
+      request.addHeader(contactHeader);
+      request.addHeader(allow);
+      request.addHeader(expire);
+      lgRegister.info("Erfolgreiche Register-Header erstellt");
+    }
+    catch (Exception ex)
+    {
+      lgRegister.getLogger(SIPmodel.class.getName()).log(Level.SEVERE, null, ex);
+    }
+  }
+
+  /**
+   * @return the request
+   */
+  public Request getRequest()
+  {
+
+    return request;
+  }
+}

src/model/SIPSessionDescription.java

@@ -0,0 +1,106 @@
+/*
+ * To change this license header, choose License Headers in Project Properties.
+ * To change this template file, choose Tools | Templates
+ * and open the template in the editor.
+ */
+package model;
+
+import java.util.ArrayList;
+import java.util.Vector;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+import javax.sdp.SdpFactory;
+import javax.sdp.SessionDescription;
+import javax.sip.RequestEvent;
+import logger.OhmLogger;
+
+/**
+ *
+ * @author Jan
+ */
+public class SIPSessionDescription
+{
+  private SdpFactory sdpFactory;
+  private SessionDescription sessionDescription;
+  private Vector mediavec;
+  private String cods[];
+  private String[][] codecs;
+  private static final Logger lgSessionDescription = OhmLogger.getLogger();
+
+  public SIPSessionDescription(String myName, String myIPAddress,
+                               RequestEvent requestEvent, Boolean anfrage)
+  {
+    codecs = new String[4][2]; // Alle unterstützen Codecs eintragen
+    codecs[0][0] = "0";
+    codecs[0][1] = "PCMU/8000";
+    codecs[1][0] = "4";
+    codecs[1][1] = "G723/8000";
+    codecs[2][0] = "8";
+    codecs[2][1] = "PCMA/8000";
+    codecs[3][0] = "18";
+    codecs[3][1] = "G729/8000";
+    cods = new String[codecs.length];
+    for (int i = 0; i < cods.length; i++)//Übertragung der RTP-Values in neues Array
+    {
+      cods[i] = codecs[i][0];
+    }
+    mediavec = new Vector();
+    try
+    {
+      sdpFactory = SdpFactory.getInstance();
+      sessionDescription = sdpFactory.createSessionDescription();
+      sessionDescription.setOrigin(sdpFactory.createOrigin(myName, 8000, 8000, "IN", "IP4", myIPAddress));
+      sessionDescription.setSessionName(sdpFactory.createSessionName("SIP Call"));
+      sessionDescription.setConnection(sdpFactory.createConnection("IN", "IP4", myIPAddress));
+
+      //Media Body
+      mediavec.add(sdpFactory.createMediaDescription("audio", 6022, 1, "RTP/AVP", cods)); //(Übertragungstyp, Port, anzahl der Ports, Verbindungstyp,..)
+      mediavec.add(sdpFactory.createAttribute("sendrecv", null));
+      if (anfrage = true)
+      {
+        for (int i = 0; i == codecs[0].length; i++)
+        {
+          System.out.println("Codecs: " + codecs[i][0] + " " + codecs[i][1]);
+          mediavec.add(sdpFactory.createAttribute("rtpmap", codecs[i][0] + " " + codecs[i][1]));
+        }
+      }
+      else//Vergleich von eigenen Codecs mit Codecs der anruft -> Rückgabe entsprechend wählen
+      {
+        //herausfiltern der zulässigen bei Nachrichtenanfrage
+        String[] reqbody = (requestEvent.getRequest()).toString().split("\\s|" + System.getProperty("line.seperator"));
+        ArrayList<String> reqSDP = new ArrayList<>();
+        for (String req : reqbody)
+        {
+          if (req.startsWith("a=rtpmap"))
+          {
+            reqSDP.add(req.replace("a=rtpmap:", ""));
+            System.out.println(reqSDP);
+          }
+        }
+        boolean temp = true; //evtl noch was besseres da so erster Codec nicht bester verwendet wird
+        for (int i = 0; i == codecs[0].length; i++)
+        {
+          if (codecs[i][1].equals(reqSDP) && temp == true)
+          {
+            mediavec.add(sdpFactory.createAttribute("rtpmap", "8 G711a/8000"));
+            temp = false;
+          }
+        }
+      }
+      sessionDescription.setAttributes(mediavec);
+    }
+    catch (Exception ex)
+    {
+      lgSessionDescription.getLogger(SIPmodel.class.getName()).log(Level.SEVERE, null, ex);
+    }
+
+  }
+  /**
+   * @return the sessionDescription
+   */
+  public SessionDescription getSessionDescription()
+  {
+    System.out.println(sessionDescription);
+    return sessionDescription;
+  }
+}

src/model/SIPmodel.java

@@ -14,8 +14,6 @@ import java.util.*;
 import java.util.logging.Level;
 import java.util.logging.Logger;
 import javax.sdp.SdpException;
-import javax.sdp.SdpFactory;
-import javax.sdp.SessionDescription;
 import javax.sip.DialogTerminatedEvent;
 import javax.sip.IOExceptionEvent;
 import javax.sip.InvalidArgumentException;
@@ -70,8 +68,8 @@ public class SIPmodel implements SipListenerExt
 
   public long cSequenz = 1;
   private String proxyTag;
-  private int myTag = (new Random()).nextInt();
+  private String myTag = String.valueOf(new Random().nextInt());
-  private int branch = hashCode();
+  private int branch = Integer.valueOf(hashCode());
   public Address contactAddress;
   public ContactHeader contactHeader;
 
@@ -123,43 +121,28 @@ public class SIPmodel implements SipListenerExt
 
   public int hashCode()
   {
-    int temp = myTag * (new Random(100)).nextInt();
+    int temp = Integer.valueOf(myTag)* (new Random(100)).nextInt();
     return temp;
   }
 
   public void sendRegister(String serverIP, int serverPort) throws ParseException, InvalidArgumentException, SipException
   {
-    lg.info("Vorbereiten des Registrierungs Headers");
     proxyAddress = serverIP + ":" + serverPort;
-    Address addressto = this.addressFactory.createAddress("sip:" + proxyAddress); //evtl. mit Port: sip:192.168.100.11:5060
+    SIPRegister register = new SIPRegister(proxyAddress, myTag, myIPAddress, myPort, branch, addressFactory, headerFactory, messageFactory, contactHeader, sipProvider.getNewCallId());
-    ToHeader to = this.headerFactory.createToHeader(addressto, null); // Integer.toString(myTag)  address + myTag
+    this.sipProvider.sendRequest(register.getRequest());
-    URI requestURI = addressto.getURI();
-    CallIdHeader callId = this.sipProvider.getNewCallId();
-    FromHeader from = this.headerFactory.createFromHeader(addressto, String.valueOf(this.myTag)); //this.contactAddress
-    ArrayList via = new ArrayList(); //Via needs a List as input
-    ViaHeader viaheader = this.headerFactory.createViaHeader(this.myIPAddress, this.myPort, "UDP", String.valueOf(branch));
-    via.add(viaheader);
-    CSeqHeader cSeq = this.headerFactory.createCSeqHeader(1L, "REGISTER");
-    MaxForwardsHeader maxForwards = this.headerFactory.createMaxForwardsHeader(70);
-    AllowHeader allow = this.headerFactory.createAllowHeader("NOTIFY,INVITE,ACK,CANCEL,BYE,REFER,INFO,OPTIONS,MESSAGE");
-    ExpiresHeader expire = this.headerFactory.createExpiresHeader(3600); //int value 
-    Request request = this.messageFactory.createRequest(requestURI, "REGISTER", callId, cSeq, from, to, via, maxForwards);
-    request.addHeader(contactHeader);
-    request.addHeader(allow);
-    request.addHeader(expire);
-    this.sipProvider.sendRequest(request);
     lg.info("Erfolgreiches Senden der Registrierung");
   }
 
   public void sendInvitation(String sipaddresse, String proxyaddresse,
                              int serverPort) throws ParseException, InvalidArgumentException, SipException, SdpException
-  {
+  { //ServerPort wird nicht verwendet?
     invite = true;
+    callID = this.sipProvider.getNewCallId();
+    
     Address addressto = this.addressFactory.createAddress("sip:" + sipaddresse + "@" + proxyaddresse);
     ToHeader to = this.headerFactory.createToHeader(addressto, null); // Integer.toString(myTag)  address + myTag
     URI requestURI = addressto.getURI();
-    callID = this.sipProvider.getNewCallId();
+    FromHeader from = this.headerFactory.createFromHeader(addressto, myTag); //this.contactAddress
-    FromHeader from = this.headerFactory.createFromHeader(addressto, String.valueOf(this.myTag)); //this.contactAddress
     ArrayList via = new ArrayList(); //Via needs a List as input
     ViaHeader viaheader = this.headerFactory.createViaHeader(this.myIPAddress, this.myPort, "UDP", String.valueOf(branch));
     via.add(viaheader);
@@ -175,8 +158,14 @@ public class SIPmodel implements SipListenerExt
     request.addHeader(expire);
     ContentTypeHeader content = headerFactory.createContentTypeHeader("application", "sdp");
     request.addHeader(content);
-    request.setContent(createSDPHeader(null), content);
+    
-    this.sipProvider.sendRequest(request);
+    
+    SIPSessionDescription sdp = new SIPSessionDescription(myName, myIPAddress, evtWerdeAngerufen, invite);
+    
+    request.setContent(sdp.getSessionDescription(), content);
+    
+    SIPInvite sipinvite = new SIPInvite(sipaddresse, proxyaddresse, myIPAddress, myPort, myTag, branch, callID, cSequenz, addressFactory, sdp.getSessionDescription(), headerFactory, messageFactory, contactHeader);
+    this.sipProvider.sendRequest(sipinvite.getInviterequest());
 
     lg.info("Erfolgreiches Senden der Invitation");
   }
@@ -190,11 +179,12 @@ public class SIPmodel implements SipListenerExt
       lg.info("Option Request von Server, erstellen 200 OK zu Server");
       try
       {
-        this.sipProvider.sendResponse(create200Ok(requestEvent));
+        SIP200Ok tempOk = new SIP200Ok(messageFactory, requestEvent, contactHeader, headerFactory);
+        this.sipProvider.sendResponse(tempOk.getResponse());
         view.getTxtArea().append("Server Option Request erfolgreich beantwortet\n");
-        lg.info("Erfolgreiches senden des Headers");
+        lg.info("Erfolgreiches senden des 200Ok-Headers");
       }
-      catch (ParseException | SipException ex)
+      catch (SipException ex)
       {
         lg.getLogger(SIPmodel.class.getName()).log(Level.SEVERE, null, ex);
       }
@@ -243,14 +233,14 @@ public class SIPmodel implements SipListenerExt
         //Cancel Request -> Response 200 Ok + Response 487 Request Terminated
         //200 Ok
         werdeAngerufen = false;
-        evtWerdeAngerufen = null; // sicher ist sicher 
+        evtWerdeAngerufen = null; // sicher ist sicher
-        this.sipProvider.sendResponse(create200Ok(requestEvent));
+        SIP200Ok tempOk = new SIP200Ok(messageFactory, requestEvent, contactHeader, headerFactory);
+        this.sipProvider.sendResponse(tempOk.getResponse());
         view.getTxtArea().append("Anrufender canceld Anfrage\n");
         lg.info("Erfolgreiches senden des 200 OkHeaders auf CancelAnfrage");
         //487 Request Terminated
-
       }
-      catch (ParseException | SipException ex)
+      catch (SipException ex)
       {
         Logger.getLogger(SIPmodel.class.getName()).log(Level.SEVERE, null, ex);
       }
@@ -259,7 +249,8 @@ public class SIPmodel implements SipListenerExt
     {
       try
       {
-        this.sipProvider.sendResponse(create200Ok(requestEvent));
+        SIP200Ok tempOk = new SIP200Ok(messageFactory, requestEvent, contactHeader, headerFactory);
+        this.sipProvider.sendResponse(tempOk.getResponse());
       }
       catch (Exception ex)
       {
@@ -284,7 +275,7 @@ public class SIPmodel implements SipListenerExt
         ToHeader to = this.headerFactory.createToHeader(addresstob, temp.getTag()); // Integer.toString(myTag)  address + myTag
         URI requestURI = addresstob.getURI();
         CallIdHeader callId = (CallIdHeader) responseEvent.getResponse().getHeader("Call-ID");
-        FromHeader from = this.headerFactory.createFromHeader(addresstob, String.valueOf(this.myTag)); //this.contactAddress 
+        FromHeader from = this.headerFactory.createFromHeader(addresstob, this.myTag); //this.contactAddress 
         WWWAuthenticateHeader wwwauth = (WWWAuthenticateHeader) responseEvent.getResponse().getHeader("WWW-Authenticate");
 
         //wird bei AuthorizationHeader wirklich alles benötigt? war glaub nur mal Test -> testen!!
@@ -334,22 +325,7 @@ public class SIPmodel implements SipListenerExt
 
   }
 
-  public Response create200Ok(RequestEvent requestEvent) throws ParseException
+ 
-  {
-    Response response = messageFactory.createResponse(200, requestEvent.getRequest());
-    response.addHeader((ViaHeader) requestEvent.getRequest().getHeader("Via"));
-    response.addHeader((FromHeader) requestEvent.getRequest().getHeader("From"));
-    response.addHeader((ToHeader) requestEvent.getRequest().getHeader("To"));
-    response.addHeader((CallIdHeader) requestEvent.getRequest().getHeader("Call-ID"));
-    response.addHeader((CSeqHeader) requestEvent.getRequest().getHeader("Cseq"));
-    response.addHeader(contactHeader);
-    AllowHeader allow = headerFactory.createAllowHeader("NOTIFY,INVITE,ACK,CANCEL,BYE,REFER,INFO,OPTIONS,MESSAGE");
-    AllowEventsHeader allowevents = headerFactory.createAllowEventsHeader("talk,hold,refer,call-info");
-    response.addHeader((CallIdHeader) requestEvent.getRequest().getHeader("Call-ID"));
-    response.addHeader(allow);
-    response.addHeader(allowevents);
-    return response;
-  }
 
   public Response create180Ringing(RequestEvent requestEvent) throws ParseException, SipException
   {
@@ -361,7 +337,7 @@ public class SIPmodel implements SipListenerExt
     //Bei Ringing muss persönlicher Tag ergänzt werden
     ToHeader temptoring = (ToHeader) requestEvent.getRequest().getHeader("To");
     proxyTag = temptoring.getTag();
-    temptoring.setTag(String.valueOf(this.myTag));
+    temptoring.setTag(this.myTag);
     responsering.addHeader(temptoring);
     cSequenz = ((CSeqHeader) requestEvent.getRequest().getHeader("Cseq")).getSeqNumber();
     responsering.addHeader((CSeqHeader) requestEvent.getRequest().getHeader("Cseq"));
@@ -376,57 +352,12 @@ public class SIPmodel implements SipListenerExt
   {
   }
 
-  public SessionDescription createSDPHeader(ArrayList<String> reqSDP) throws SdpException
-  {
-    SdpFactory sdpFactory = SdpFactory.getInstance();
-    SessionDescription sessionDescription = sdpFactory.createSessionDescription();
-    sessionDescription.setOrigin(sdpFactory.createOrigin(myName, 8000, 8000, "IN", "IP4", myIPAddress));
-    sessionDescription.setSessionName(sdpFactory.createSessionName("SIP Call"));
-    sessionDescription.setConnection(sdpFactory.createConnection("IN", "IP4", myIPAddress));
-
-    //Media Body
-    Vector mediavec = new Vector();
-    String cods[] = new String[codecs.length];
-    System.out.println("System out: " + codecs.length);
-
-    for (int i = 0; i < cods.length; i++)//Übertragung der RTP-Values in neues Array
-    {
-      cods[i] = codecs[i][0];
-    }
-
-    mediavec.add(sdpFactory.createMediaDescription("audio", 6022, 1, "RTP/AVP", cods)); //(Übertragungstyp, Port, anzahl der Ports, Verbindungstyp,..)
-    mediavec.add(sdpFactory.createAttribute("sendrecv", null));
-    if (invite = true)
-    {
-      for (int i = 0; i == codecs[0].length; i++)
-      {
-        System.out.println("Codecs: " + codecs[i][0] + " " + codecs[i][1]);
-        mediavec.add(sdpFactory.createAttribute("rtpmap", codecs[i][0] + " " + codecs[i][1]));
-      }
-    }
-    else//Vergleich von eigenen Codecs mit Codecs der anruft -> Rückgabe entsprechend wählen
-    {
-      boolean temp = true; //evtl noch was besseres da so erster Codec nicht bester verwendet wird
-      for (int i = 0; i == codecs[0].length; i++)
-      {
-        if (codecs[i][1].equals(reqSDP) && temp == true)
-        {
-          mediavec.add(sdpFactory.createAttribute("rtpmap", "8 G711a/8000"));
-          temp = false;
-        }
-      }
-    }
-    sessionDescription.setAttributes(mediavec);
-    return sessionDescription;
-  }
-
   public void annehmen() //Fehlende Bedingung 
   {
     RequestEvent requestEvent;
     if ((requestEvent = evtWerdeAngerufen) != null && werdeAngerufen == true)
     {
       countWerdeAngerufen = 0;  
-
       try
       {
         callID = (CallIdHeader) requestEvent.getRequest().getHeader("Call-ID");
@@ -455,7 +386,7 @@ public class SIPmodel implements SipListenerExt
         responsering.addHeader((FromHeader) requestEvent.getRequest().getHeader("From"));
 
         ToHeader temptoring = (ToHeader) requestEvent.getRequest().getHeader("To");
-        String tempTag = String.valueOf(this.myTag + Math.random());
+        String tempTag = String.valueOf(Integer.valueOf(myTag)+ Math.random());
         temptoring.setTag(tempTag); //evtl. besseren Tag
         responsering.addHeader(temptoring);
 
@@ -471,8 +402,9 @@ public class SIPmodel implements SipListenerExt
 
         //Jetzt kommt 200 Ok SIP Header + SDP (SIP/SDP)
         //Sdp Header erstellen nächster Schritt
-        invite = false;
+        /*
-        Response okandSDP = this.messageFactory.createResponse(Response.OK, requestEvent.getRequest());
+        //invite = false;
+        //Response okandSDP = this.messageFactory.createResponse(Response.OK, requestEvent.getRequest());
         //okandSDP.addHeader((ViaHeader) requestEvent.getRequest().getHeader("Via"));
         okandSDP.addHeader((FromHeader) requestEvent.getRequest().getHeader("From"));
 
@@ -486,23 +418,17 @@ public class SIPmodel implements SipListenerExt
         ContentTypeHeader content = headerFactory.createContentTypeHeader("application", "sdp");
         okandSDP.addHeader(content);
 
-        String[] reqbody = (requestEvent.getRequest()).toString().split("\\s|" + System.getProperty("line.seperator"));//Req. Body in Zeilen aufteilen
+        SIPSessionDescription sdp = new SIPSessionDescription(myName, myIPAddress, requestEvent, invite);
-        ArrayList<String> reqSDP = new ArrayList<>();
+        okandSDP.setContent(sdp.getSessionDescription(), content);
-        for (String req : reqbody)//jeden String durchgehen und nach Codecs suchen die unterstützt werden
-        {
-          if (req.startsWith("a=rtpmap"))
-          {
-            reqSDP.add(req.replace("a=rtpmap:", ""));
-            System.out.println(reqSDP);
-          }
-        }
-        okandSDP.setContent(createSDPHeader(reqSDP), content);
         this.sipProvider.sendResponse(okandSDP);
-
+        */
+        SIP200Ok tempOk = new SIP200Ok(messageFactory, requestEvent, contactHeader, headerFactory);
+        SIPSessionDescription sdp = new SIPSessionDescription(myName, myIPAddress, requestEvent, invite);
+        tempOk.addSDP(sdp.getSessionDescription(), myTag);
         view.getTxtArea().append("Telefonat beginnt\n");
         evtWerdeAngerufen = null;
       }
-      catch (ParseException | SipException | SdpException ex)
+      catch (ParseException | SipException ex)
       {
         Logger.getLogger(SIPmodel.class.getName()).log(Level.SEVERE, null, ex);
 
@@ -630,7 +556,7 @@ public class SIPmodel implements SipListenerExt
   /**
    * @return the myTag
    */
-  public int getMyTag()
+  public String getMyTag()
   {
     return myTag;
   }
@@ -638,7 +564,7 @@ public class SIPmodel implements SipListenerExt
   /**
    * @param myTag the myTag to set
    */
-  public void setMyTag(int myTag)
+  public void setMyTag(String myTag)
   {
     this.myTag = myTag;
   }